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A preparation method and application of coral reef-shaped indium oxide

A coral reef and indium oxide technology, applied in chemical instruments and methods, inorganic chemistry, gallium/indium/thallium compounds, etc., can solve problems that endanger life and property safety, cause cancer and respiratory diseases, and achieve high-sensitivity effects

Inactive Publication Date: 2019-06-14
NANYANG NORMAL UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The main pollutant gas NO 2 Emissions also continued unabated, while NO 2 The hazards are very serious. In addition to causing disasters such as photochemical smog and acid rain, it can also cause cancer and respiratory diseases, seriously endangering people's lives and property.

Method used

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  • A preparation method and application of coral reef-shaped indium oxide
  • A preparation method and application of coral reef-shaped indium oxide
  • A preparation method and application of coral reef-shaped indium oxide

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Experimental program
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Effect test

Embodiment （

[0020] Embodiment (preferred solution)

[0021] 0.3536g indium chloride tetrahydrate (InCl 3 • 4H 2 O) was added to 36 mL of ethanol and stirred, followed by the addition of 0.5 g of sodium dodecyl sulfate (C 12 h 25 SO 3 Na) continue to stir, and finally add 0.3626g of urea (Urea), and carry out stirring and ultrasonic to ensure a uniform mixed solution. Pour the prepared mixed solution into the reaction kettle, and put it into a constant temperature oven at 120°C for 12 hours to react to form a white precipitate.

[0022] After the reaction, the reaction kettle was naturally cooled to room temperature, and the supernatant was poured out to take out the white precipitate, washed alternately with distilled water and ethanol and put into a centrifuge. After washing, put the precipitate into a square aluminum oxide container, put it in a constant temperature oven at 80°C for 24 hours, and obtain a white sample.

[0023] Put the dried white sample above into a muffle furnac...

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Abstract

The invention discloses a preparation method of coral reef-shaped indium oxide. The method comprises the following steps: 1) dissolving indium chloride, sodium dodecanesulphonate and urea in ethanol to obtain a mixing solution; 2) heating the mixing solution obtained in the step 1), reacting the mixing solution to generate precipitate; and 3) separating the precipitate obtained in the step 2), washing the precipitate, drying and annealing the material to obtain the coral reef-shaped In2O3. The prepared coral reef-shaped In2O3 has high sensitivity on trace quantity NO2 under low temperature environment, and is the high-performance gas-sensitive material having latent application value.

Description

technical field [0001] The invention belongs to the field of gas sensitive materials, in particular to a coral reef-like In 2 o 3 The preparation method and its detection of NO 2 Applications. Background technique [0002] Nanomaterials have attracted widespread attention due to their unique physical and chemical properties and their potential applications in various fields. Studying its microstructure and performance is of great significance for exploring its formation mechanism and developing its application in the field of gas sensors. With the acceleration of global industrialization, the advancement of science and technology, and the sharp increase in car ownership, the types of toxic, harmful, flammable and explosive gases discharged into the atmosphere are becoming more and more complex and the content is increasing. The main pollutant gas NO 2 Emissions also continued unabated, while NO 2 In addition to causing disasters such as photochemical smog and acid rain...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C01G15/00B82Y40/00G01N27/12
CPCC01G15/00C01P2004/03C01P2004/30G01N27/125
Inventor 徐秀梅李宝磊张海礁朱永胜崔少博
Owner NANYANG NORMAL UNIV